package com.jic;

import com.github.xiaoymin.swaggerbootstrapui.annotations.EnableSwaggerBootstrapUI;
import com.jic.config.SwaggerConfig;
import com.jic.filter.MyEurekaClientFallback;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.cloud.netflix.zuul.EnableZuulProxy;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;

import javax.annotation.PostConstruct;
import java.util.TimeZone;

import org.springframework.web.cors.CorsConfiguration;
import org.springframework.web.cors.UrlBasedCorsConfigurationSource;
import org.springframework.web.filter.CorsFilter;
import springfox.documentation.spring.web.plugins.Docket;
import springfox.documentation.swagger2.annotations.EnableSwagger2;

@SpringBootApplication
@EnableZuulProxy
//@EnableEurekaClient
@EnableSwaggerBootstrapUI
@EnableSwagger2
@EnableDiscoveryClient
public class JhkcGatewayApplication {
	public static void main(String[] args) {
		SpringApplication.run(JhkcGatewayApplication.class, args);
	}

	@Bean
	public MyEurekaClientFallback eurekaClientFallback() {
		return new MyEurekaClientFallback();
	}
	/**
	 * 时区设置
	 */
	@PostConstruct
	void started() {
		TimeZone.setDefault(TimeZone.getTimeZone("Asia/Shanghai"));
	}

	@Bean
	@ConditionalOnMissingBean
	public Docket getDocket() {
		return new SwaggerConfig().groupRestApi();
	}

	@Bean
	public CorsFilter corsFilter() {

		final UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();

		final CorsConfiguration config = new CorsConfiguration();

		// 允许cookies跨域
		config.setAllowCredentials(true);

		// #允许向该服务器提交请求的URI，*表示全部允许，在SpringMVC中，如果设成*，会自动转成当前请求头中的Origin
		config.addAllowedOrigin("*");

		// #允许访问的头信息,*表示全部
		config.addAllowedHeader("*");

		// 预检请求的缓存时间（秒），即在这个时间段里，对于相同的跨域请求不会再预检了
		config.setMaxAge(18000L);
		// 允许提交请求的方法，*表示全部允许

		config.addAllowedMethod("OPTIONS");

		config.addAllowedMethod("HEAD");

		// 允许Get的请求方法
		config.addAllowedMethod("GET");

		config.addAllowedMethod("PUT");

		config.addAllowedMethod("POST");

		config.addAllowedMethod("DELETE");

		config.addAllowedMethod("PATCH");

		source.registerCorsConfiguration("/**", config);
		return new CorsFilter(source);

	}
}
